if (!_enabled)
    exit;
if (!_input_enabled)
    exit;
_confirm_buffer--;
_cancel_buffer--;
if (button1_p())
{
    if (_confirm_buffer <= 0)
    {
        reset_buffer();
        confirm();
    }
}
else if (button2_p())
{
    if (_cancel_buffer <= 0)
    {
        reset_buffer();
        cancel();
    }
}
if (array_length(_options) == 0)
    exit;
_scroll_buffer--;
if (_scroll_buffer > 0)
    exit;
if (right_p())
{
    snd_play(snd_menumove);
    _options_index = scr_wrap(_options_index + 1, 0, array_length(_options) - 1);
    reset_buffer();
}
else if (left_p())
{
    snd_play(snd_menumove);
    _options_index = scr_wrap(_options_index - 1, 0, array_length(_options) - 1);
    reset_buffer();
}
if (_flag < 0)
    exit;
if (_options_index != scr_flag_get(_flag))
    global.flag[_flag] = _options_index;